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The main difference in eye shape is the way the upper eyelid meets the inner corner of the eye. In many ethnicities, including East Asians, Southeast Asians, Polynesians and Native Americans, there is commonly a slight fold at this point, called an ‘epicanthic fold’.
Variation in the shape of the epicanthic fold has led to four types being recognised: Epicanthus supraciliaris runs from the brow, curving downwards towards the lachrymal sac. Epicanthus palpebralis begins above the upper tarsus and extends to the inferior orbital rim.
19 Νοε 2023 · Asian eyes are characterized by unique anatomical features that distinguish them from other eye shapes. Understanding the anatomy of Asian eyes can provide insights into the evolutionary reasons behind their smaller size.
10 Φεβ 2023 · According to scholars, the small Asian eyes are a type of mutation that follows this specific racial group. This evolution continues to influence the shape and size of their eyelids. This mutation is the natural process of selecting and deselecting several characters through time.
epicanthic fold, fold of skin across the inner corner of the eye (canthus). The epicanthic fold produces the eye shape characteristic of persons from central and eastern Asia; it is also seen in some Native American peoples and occasionally in Europeans (e.g., Scandinavians and Poles).
15 Οκτ 2022 · Here we quantify substantial interspecific variation in eye shape and colouration across 77 primate species representing all extant genera of anthropoid primates.
2 Σεπ 2024 · Understanding the epicanthic fold and eye shape in East Asian populations is essential for appreciating the complexity of human diversity. This feature has a rich history rooted in...
